NM_018100.4:c.573+601G>T

Variant names:

• chr6-52439192-G-T
• rs509946
• NM_018100.4:c.573+601G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_018100.4(EFHC1):​c.573+601G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EFHC1 NM_018100.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.373
• Publications: 3 publications found

Genes affected

EFHC1 (HGNC:16406): (EF-hand domain containing 1) This gene encodes an EF-hand-containing calcium binding protein. The encoded protein likely plays a role in calcium homeostasis. Mutations in this gene have been associated with susceptibility to juvenile myoclonic epilepsy and juvenile absence epilepsy. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2010]

EFHC1 Gene-Disease associations (from GenCC):

• juvenile myoclonic epilepsy

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
• epilepsy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018100.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EFHC1	NM_018100.4	MANE Select	c.573+601G>T		intron	N/A	NP_060570.2
	EFHC1	NM_001172420.2		c.516+601G>T		intron	N/A	NP_001165891.1
	EFHC1	NR_033327.2		n.642+601G>T		intron	N/A

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EFHC1	ENST00000371068.11	TSL:1 MANE Select	c.573+601G>T		intron	N/A	ENSP00000360107.4
	EFHC1	ENST00000637340.1	TSL:1	n.1241+601G>T		intron	N/A
	EFHC1	ENST00000637353.1	TSL:5	c.573+601G>T		intron	N/A	ENSP00000490441.1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 5095

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.41
DANN	Benign	0.38
PhyloP100		-0.37

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs509946; hg19: chr6-52303990;